attempt_animation.py

import time

import board
import displayio
import adafruit_imageload
from adafruit_displayio_layout.widgets.easing import back_easeinout as easein
from adafruit_displayio_layout.widgets.easing import back_easeinout as easeout

def _animate_value(
        start_val,
        end_val,
        animation_time,
        function_to_call
):
    start_time = time.monotonic()

    if start_val > end_val:  # direction is decreasing: "out"
        easing_function = easeout  # use the "out" easing function

    else:  # direction is increasing: "in"
        easing_function = easein  # use the "in" easing function

    while True:
        this_time = time.monotonic()
        target_position = (
                start_val
                + (end_val - start_val)
                * (this_time - start_time)
                / animation_time
        )

        # print(target_position)
        if (this_time - start_time) < animation_time:
            if function_to_call:
                function_to_call(easing_function(target_position))
        else:
            break


def set_x_position(x_pos):
    print(int(x_pos))
    tile_grid.x = int(x_pos)

image, palette = adafruit_imageload.load("images/4bit.bmp")

tile_grid = displayio.TileGrid(image, pixel_shader=palette)

group = displayio.Group()
group.append(tile_grid)
board.DISPLAY.show(group)

_start_time = time.monotonic()
_animate_value(0, 100, 0.5, set_x_position)
time.sleep(1)
#_animate_value(100, 0, 1.0, set_x_position)
print(time.monotonic() - _start_time)

while True:
    pass